Power Input

Power is normally applied at the 5-pin JST-GH connector P27. Alternatively, power may be supplied at the two-pin header P28 located directly below P27.

Power Input Connectors

Connector P27:

Pin #	Signal	Specification
1	Power+	+5 to +40V
2	Power+	+5 to +40V
3	NC	NC
4	Power- (GND)	0V (GND)
5	Power- (GND)	0V (GND)

Header P28:

This is a 2 pin 0.100" header that can be used to hardwire or provide power in another way or with a wire mount connector.

PLEASE DOUBLE CHECK the polarity when using P28. Use a multimeter to confirm against the pins on P27. Some boards have a "+" sign for the capacitor in a location that can be misleading!!!!

Pin #	Signal	Specification
1	Power+	+5 to +40V
2	Power- (GND)	0V (GND)

Power input connectors P27, P28 schematic